270 clamp



March 14, 1933. is AP 1,901,349

270 CLAMP Filed May 23, 1930 Z INZENT'OR Patented Mar. 14,1933

UNITED STATES- PATENT orriciz JOHN s. 1.22, or LE BOY, m xonx, assrenon 'ro LAP]? msumvron oomrm, 116e,;

CORPORATION OF NEW YORK 270 CLAMP Application filed May 23,

This invention relates to a clamp which is adapted to clamp a tension member thereto and at the same time turn it through an angle of about 270. r

The clamp of the present invention overcomes the disadvantages of prior clamps by providing a strong unitary clamp adapted to be secured to a. suitable support or insulator at one end and to clamp the tension 1 member thereto at the other end, at the same time, turnin the tension member through an angle of a ut 270 in its passage through the clamp". lhl n the accompanying drawing 1 bodymg the present invention.

Fig. 2 is a plan view of the same; and Fig. 3 is a perspective view showing the clamp in use.

As will be seen from the drawing, the clam consists of a unitary member which may be a suitable forging having a substantially circular body portion which may be said to represent a partial turn of a helix, 25 but it will be clear that the ends of the body portion are superimposed and at an angle of about 270 to each other, although it is within the scope of the present invention to vary this angle so that it is greater than 270 and may approach a complete circle of 360? g rz-oit may even be in some cases less than 0 i Assuming that the clampbody is about 270 it will be noted that a cable or tensionmember receiving groove or channel 11 passes around the outside of the body, which is cut out centrally as at 12 forming, roughly speaking, an annulus and projecting from the inner surface of the annulus into the central cut-away portion and in the same plane with the side walls of the groove is the projection 13, the grpose of which will be explained hereina r. a

Extending substantially tangentially from one end of the body portion is an extension 14 which is bifurcated at its extreme end to 'provide: the arms 15 with the apertures 16 passing therethrough and, as shown in Fig. 3 this bifurcated end is ada ted to receive the apertured ear of a suita le supporting re 1' is an edge view of a clamp em-.

strength 7 thereof. The

ing to prevent slipping of the hook, so that 1930. Serial No. 455,002.

means, a pin passing through the whole to secure the clamp in position. The other end of the clamp body also has a substantially tangential extension 17 which is provided with apertured cars 18 and a central strengthening rib 19. A U-bolt 20 having threaded ends is adapted to be passed through the aperturedears of extension 17, nuts 21 being threaded on said bolt ends, thereby clamping the cable or tension member-22 firmly in place, see Fig. 3. For the purpose of lightening-the clamp, the material in the bifurcated, tangential extension 14 may be somewhat cut away as at 23, but not to'suchan extent as to impair the groove formed around the body of the clamp and across the face of the extension 17 may vary. either in width or in depth or in both, if so desired.

In use, as is clearly shown in Fig. 3, thetension member. isv threaded around the groove of the body portion emerging at about 270 to its original line of direction, and in order to secure the tension member to the clamp at the desired tautness a block and tackle (not shown) is connected temporaril to the body of the clamp by passing the hoofl of the block and tackle through the central openingof the clamp, the pro ection '13 actthe tension member may be applied to the "clamp and fastened by means of the U-bolt construction to 'give a predetermined tension on the span of wire as otherwise it would be practically impossible to handle the tension member manually so as to secure the desired degree of tautness in the span. When the tension member is so secured the block and tackle may be removed.

Various modifications, additions, or omissions may be made in the clampdisclosed which is intended to be illustrative more than limitative. 1

,What I claim as new and desire to secure by Letters Patent is:

1. A clamp consisting-of a substantially circular body portion having an exterior groove with ofiset'ends for the reception of a tension member, a bifurcated tangential extension at one end adapted to be secured to a suitable support and a tangential extension at the other end having associated means to secure said tension member thereto, the body portion aforesaid being centrally cut out, and a projection extending from the body portion inwardly into said out out.

2. A clamp having a substantially 270 exteriorly grooved body portion, a tangential extension at one end to secure said clamp to an insulator support or the like, an apertured tangential extension at the otherv end, a clamping element cooperating with said apertures to secure said tension member to said extension, and an inwardly extending projection on said body portion.

3. A clamp comprising a substantially annular body, having a substantially annular cable receiving groove formed in the outer peripheral face thereof, and an inwardly projecting lug formed on the. inner peripheral face thereof, an extension extending substantially tangentially of said body and having a cable receiving groove formed thereini and forming a continuation of the groove of said body, and a second extension extending substantially tangentially with relation to said body and at an angle to said first mentioned extension, integrally formed with said body andadapted to be secured to a support.

4. A clamp comprising a substantially annular body, having a substantially annular cable receiving groove formed in the outer peripheral face thereof,'and an inwardly projecting lug formed on the inner peripheral face thereof, an extension extending substantially tangentially to said body and haying a cable receiving groove formed therein constituting a continuation of the groove of said body, means associated with said extension for securing a cable in place in said groove, and a second integrally formed extension extending substantially tangentially with relation to said body-and at an angle to said first mentioned extension, and adapted to be secured'to a support.

5. A clamp adapted to turn a cable through an angle of about 270 and to hold said cable in such position comprising a peripherally grooved body member so constructed and arranged as to efiect'the same, said body member having a unitary extension directly connected to a suitable support and lying substantially in the plane of said body member, a second extension on said body member at the exit'end of said groove which is widened 'and provided with lateral apertured ears between which said groove continues, the entering end of said roove being coterminous with the body mem er, and means cooperating with said exit end for anchoring said cable in position.

6. A clamp adapted to turn a cable through an angle of about 27 0 and to hold said cable in such position, comprising a peripherally grooved annular body member so constructed and arranged as to effect the same, said body member having a unitary extension directly connected to a suitable support and lying substantially in the plane of the body member, the entering end of the groove being coterminous with said body member, a tangential extension at the exit end of the groove in said body member, said latter extension having a groove as a continuation of the groove in said body member, a pair of lateral apertured ears at the end of said latter extension and a longitudinally extending rib on the underside of said last extension.

7. A clamp adapted to turn a cable through an angle of about 27 0 and to hold said cable in such position, comprising a peripherally grooved annular body member so constructed and arranged as to eflt'ect the same, said body member having a unitary extension directly connected to a suitable support and lying substantially in the plane of the body member, the entering end of the groove being coterminous with said body member, a tangential extension at the exit end of the groove in said body member, said latter extension having a groove as a continuation of the groove in said body member,a pair of lateral apertured ears at the end of said latter extension and a longitudinally extending rib on the underside of said last extension, said rib rising from a minimum height forwardly and rearwardly of said lateral ears to a'maximum height at a point in lateral alignment with .said ears but underlying the groove at that point. a

8. A clamp adapted to turn a cable through an angle of about 27 0 and to hold said cable in such position, comprising a peripherally grooved annular body member so constructed and arranged as to effect the same, said body member having a unitary extension directly connected to a suitable support and lying substantially in the plane of the body member, the entering end of the groove being coterminous with said body member, a tangential extension at the exit end of the groove in said body member, said latter extension having a groove as a continuation of the groove in said body member, a pair of lateral apertured ears at the end of said latter extension, and a longitudinally extending rib on the underside of said last extension, said rib rising from a minimum height forwardly and rearwardly of said lateral ears to a maximum height at a point in lateral alignment with said ears but underlying the groove at that point, the walls forming the groove in said last extension being cut away at said ears.

9.. A clamp adapted to turn a cable through an angle of about 270 and to hold said cable substantially in the lane of the body member, the entering en of the groove being coterminous with saidbody member, a tangential extension at the exit end of the groove in said body member, said latter extension having a groove as a continuation of the groove in said body member, a pair of lateral apertured ears at the ends of said latter extension and a longitudinally extending rib on the underside of said last extension, and a U-bolt adapted to have its threaded legs pass through the ears aforesaid and its connectin portion across the groove opposite the ri In testimony whereof, I have hereunto subscribed my name, May 16, 1930.

JOHN S. LAPP. 

